Andrew Forrest (Australia)

53 FOUNDER & CHAIRMAN, FORTESCUE METALS GROUPDonated $62 million to Western Australia’s five universities last October to fund scholarships and a residential college. In March launched the Global Freedom Network, an alliance between three major religions and his Walk Free Foundation to end slavery. Also works to boost job prospects and health care for the country’s indigenous people. Stepped down as CEO of iron-ore giant Fortescue in 2011 to concentrate on philanthropy. He and his wife, Nicola, were the first Australians to sign the Giving Pledge,in 2013, promising to donate most of their wealth to charity during their lifetimes. (AP Photo/Gregorio Borgia)